tree b461a9ef90be234d203f29cf935a72d91064e5f1
parent 562e5f1a352977f45d0d0ed3279b556d3e41e1ba
author Jacob Tanenbaum <jtanenba@redhat.com> 1448986457 +0100
committer Rafael J. Wysocki <rafael.j.wysocki@intel.com> 1449106230 +0100

cpupower: fix how "cpupower frequency-info" interprets latency

the intel-pstate driver does not support the ondemand governor and does not
have a valid value in
/sys/devices/system/cpu/cpu[x]/cpufreq/cpuinfo_transition_latency. The
intel-pstate driver sets cpuinfo_transition_latency to CPUFREQ_ETERNAL (-1),
the value written into cpuinfo_transition_latency is defind as an unsigned
int so checking the read value against max unsigned int will determine if the
value is valid.

Signed-off-by: Jacob Tanenbaum <jtanenba@redhat.com>
Signed-off-by: Thomas Renninger <trenn@suse.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>